[Freesurfer] mri_convert -conform issue

Hi List,

I just noticed that when I use mri_convert -conform (which reslices my RPI volumes to LIA) the tkrvox2vras matrices seem not to change (for both freesurfer centos4 64bit, version 4.5 and version 5.1). I use MRIread to read in the resulting files in matlat and try to compare the volumes there. All the vox2ras are changed by the conformation (as I expect), but the tkrvox2ras of the conformed volume equal the tkrvox2ras matrix from the original volume. I am confused now as the tkrvox2ras and the x_r, x_a, x_s, (as well as the y_* and z_*) vectors are updated and match the vox2ras matrices. Shouldn't tkrvox2ras also be updated? And if not why :) ?

Best Sebastian